I took the index with the words, transformed the variety to binary, included three zeros, calculated the sha256 digest, took the main Portion of the hexadecimal to transform it to binary, extra three zeros towards the 8 digits on the binary and acquired 00000010011 which interprets to 19 in decimal. https://zanybookmarks.com/story18890309/examine-this-report-on-bip39-mnemonic-phrase-tool